$BTC Bitcoin is a decentralized digital currency that was launched in 2009 by a person or group under the name "Satoshi Nakamoto". It relies on blockchain technology that allows for the transparent and secure recording of all transactions without the need for a central intermediary. Bitcoin is mined through a network of computers and has a limited supply, as it will not exceed 21 million units. It is used as a means of payment and a store of value, and is viewed as digital gold. Bitcoin has experienced sharp price fluctuations, making it a topic of debate among investors. With growing global interest, it is expected to continue influencing the future of digital economy and finance.